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RT9451 Fiches technique(PDF) 24 Page - Richtek Technology Corporation

No de pièce RT9451
Description  Switch-Mode Single Cell Li-ion Battery Charger with USB OTG
PDF  37 Pages
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Fabricant  RICHTEK [Richtek Technology Corporation]
Site Internet  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9451 Fiches technique(HTML) 24 Page - Richtek Technology Corporation

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RT9451
24
DS9451-00
September 2013
www.richtek.com
©
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Interrupt Register 1 (INT1)
Address - 0x08h
Data Bit
D7
D6
D5
D4
D3
D2
D1
D0
Field Name
TSDI
VINOVPI
Not used
Not used
Not used
Not used
Not used
Not used
Read/Write
R
R
R
R/W
R/W
R/W
R/W
R
Reset Value
0
0
0
0
0
0
0
0
Field Name
Bit Definition
TSDI
Thermal shutdown fault. Set if die temperature exceeds thermal shutdown threshold.
Reset when die temperature drops below TSD release threshold.
VINOVPI
VIN over-voltage protection. Set when VIN > VIN_OVP is detected.
Not used
N/A
Not used
N/A
Not used
N/A
Not used
N/A
Not used
N/A
Not used
N/A
Interrupt Register 2 (INT2)
Address - 0x09h
Data Bit
D7
D6
D5
D4
D3
D2
D1
D0
Field Name
CHRVPI
CHBADI
CHBATOVI
CHTERMI
CHRCHGI
CH32MI
CHTREGI
CHMIVRI
Read/Write
R
R
R
R
R
R
R
R
Reset Value
0
0
0
0
0
0
0
0
Field Name
Bit Definition
(1)
CHRVPI
Charger fault. Reverse protection (VIN > VIN(MIN) and VIN < VBATS + VSLP (fault)
CHBADI
Charger fault. Bad adaptor (VIN < VIN(MIN) during power on detection)
CHBATOVI
Charger fault. Battery OVP
CHTERMI
Charge terminated
CHRCHGI
Recharge request (VBATS < VOREG − VRECH)
CH32MI
Charger fault. 32 minutes time-out
CHTREGI
Charger warning. Thermal regulation loop active.
CHMIVRI
Charger warning. Input voltage MIVR loop active.
(1) All charger faults result in disabling the charger (CH_EN [1:0] = 00). Recharge request disables the charger only if
CH_EN [1:0] = 10.



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